Past tragic events such as the fatal explosion and crash of Nimrod XV230, Space Shuttle Challenger or Columbia disasters, SHELL Moerdijk explosion, Herald of Free Enterprise, Kings Cross fire and Texas City refinery explosion occurred in entirely different areas or industry sectors. There is, however, an aspect which is common in these cases, namely the phenomenon known as creeping change. The IChemE Safety Centre has recently addressed this topic presenting a case study in its quarterly publication, the Safety Lore. They also provided practical tips to managers, process safety engineers, supervisors and operators of industrial sites to learn how such major incidents involving creeping changes can be avoided. This paper demonstrates the phenomenon of creeping changes via two case studies from two different sectors. In addition, it suggests lead metrics associated with these events to help monitor the changes. Finally, it provides ideas to managers, supervisors, process engineers and operators how to address those changes in their work.?
Past tragic events such as the fatal explosion and crash of Nimrod XV230, Space Shuttle Challenger or Columbia disasters, SHELL Moerdijk explosion, Herald of Free Enterprise, Kings Cross fire and Texas City refinery explosion occurred in entirely different areas or industry sectors. There is, however, an aspect which is common in these cases, namely the phenomenon known as creeping change. The IChemE Safety Centre has recently addressed this topic presenting a case study in its quarterly publication, the Safety Lore. They also provided practical tips to managers, process safety engineers, supervisors and operators of industrial sites to learn how such major incidents involving creeping changes can be avoided. This paper demonstrates the phenomenon of creeping changes via two case studies from two different sectors. In addition, it suggests lead metrics associated with these events to help monitor the changes. Finally, it provides ideas to managers, supervisors, process engineers and operators how to address those changes in their work.?
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